Filament Dry Box

thingiverse

This is a complete re-do based on several other designs here on Thingiverse. Main parts: Screw port - improved design that's more stable when printed in PLA, which had some issues where the original referenced ports would shear on a print layer. The new design also changes the angle of the filament feed to match how the filament is wound on the spool and provides a smoother path to the printer. Spool holder - took the TUSH concept and adapted it for use in the dry box, with design mounts modified to be stable and adjustable inside the dry box. I currently use SainSmart pro filament, which this box perfectly holds 4 spools of - you may not fit 4 spools if your filament spools are wider. Parts you'll need: 1- Sterilite Gasket 20 Quart Clear Storage Bin - Model Number: 19324306 https://tinyurl.com/y24pd742 2-5/16" (about 8mm) steel rods about a foot long (4 foot rod will build 2 boxes), which you'll need to measure and cut before assembly for the perfect length. 12-M3x16 screws 4-M3x20 screws 16-608 2RS Skateboard bearings 4-rubber o-rings - about 11mm inside diameter Desiccant (to remove any moisture from inside the box) Printing: All parts were printed in PLA, using 3 inside/outside walls for strength. For each box, you'll need to print: 4-Tube Screws 4-Tube Nuts 2-End Brackets 8-Normal Brackets 6-Tall Brackets 1 set of end brackets (2 normal, 1 tall and 1 end) will fit on an Ender 3 if you position the end bracket diagonally. You can see my layout here: https://www.thingiverse.com/thing:3776442 Assembly: Place a bearing over each post of either a tall or end bracket, place a normal bracket on top and fasten with M3x16 screws for the tall or M3x20 screws for the end. Insert the cut to size rods into the holes on one end bracket, slide the rest of the tall/normal brackets onto the rod (normal sides together) and then install the other end bracket (it will be tight - if it's too tight, you can use a drill to enlarge the hole - not too big because you don't want it to slide too easily). Insert the assembled brackets into the dry box and place your filament rolls on the bearings - slide the holders to adjust the width to hold your spools. Drill holes just big enough to insert the Tube Screws (the Sterilite box is soft plastic, it's best if the holes are a bit small) and screw the Tube Screws into the holes from the outside. Inside install one o-ring and a nut finger tight (you don't want to crush the o-ring, just make a seal). Cut 4 lengths of bowden tube and insert thru the screws into the box. Enjoy!